Drop down list problem for editing req in grid view

Hi, I am trying to do an edit req and when I click on the edit, one of the options is DDL. However, there is a prob. I am not sure of how to resolve it.
This is the business logic for the DDL:

 

protected void 
gvChecklist_RowDataBound(object sender, GridViewRowEventArgs e) 

{

if (e.Row.RowType == DataControlRowType.Footer) 

{

DropDownList cmbStatus = (DropDownList)e.Row.FindControl("cmbStatus"); 

cmbStatus.DataSource = vrmdb.Get_Status();

cmbStatus.DataTextField = "status"; 

cmbStatus.DataValueField = "status"; 

cmbStatus.DataBind();

}

if (e.Row.RowType == DataControlRowType.DataRow) 

{

DropDownList cmbNewStatus = (DropDownList)e.Row.FindControl("cmbNewStatus"); 

if (cmbNewStatus != null) 

{

cmbNewStatus.DataSource = vrmdb.Get_Status();

cmbNewStatus.DataTextField = "status"; 

cmbNewStatus.DataValueField = "status"; 

cmbNewStatus.DataBind();

cmbNewStatus.SelectedValue = 
gvChecklist.DataKeys[e.Row.RowIndex].Values[1].ToString();

};

}

} 

protected void 
gvChecklist_RowDataBound(object sender, GridViewRowEventArgs e) 

{

if (e.Row.RowType == DataControlRowType.Footer) 

{

DropDownList cmbStatus = (DropDownList)e.Row.FindControl("cmbStatus"); 

cmbStatus.DataSource = vrmdb.Get_Status();

cmbStatus.DataTextField = "status"; 

cmbStatus.DataValueField = "status"; 

cmbStatus.DataBind();

}

if (e.Row.RowType == DataControlRowType.DataRow) 

{

DropDownList cmbNewStatus = (DropDownList)e.Row.FindControl("cmbNewStatus"); 

if (cmbNewStatus != null) 

{

cmbNewStatus.DataSource = vrmdb.Get_Status();

cmbNewStatus.DataTextField = "status"; 

cmbNewStatus.DataValueField = "status"; 

cmbNewStatus.DataBind();

cmbNewStatus.SelectedValue = 
gvChecklist.DataKeys[e.Row.RowIndex].Values[1].ToString();

};

}

}

This is the error:

 
Server Error in '/VRM_WebSite' Application. 


Index was out of range. Must be non-negative and less than the size of 
the collection.
Parameter name: index 

Description: An unhandled exception occurred during the execution 
of the current web request. Please review the stack trace for more information 
about the error and where it originated in the code. 

Exception 
Details: System.ArgumentOutOfRangeException: Index was out of range. Must be 
non-negative and less than the size of the collection.
Parameter name: 
index

Source Error: 




Line 417:                    cmbNewStatus.DataValueField = "status";
Line 418:                    cmbNewStatus.DataBind();
Line 419:                    cmbNewStatus.SelectedValue = gvChecklist.DataKeys[e.Row.RowIndex].Values[1].ToString();
Line 420:                };
Line 421:            }

Source File: 
c:\Users\L31410\Desktop\Peggie\Peggie\Deployment Source\Phase 
1\Deployment 25 Nov for StarHub\VS Projects 
Source\VRM_WebSite\app\vrm\ContractThreeGridView.aspx.cs 
   Line: 419 

Stack 
Trace:

Thks for ur help all these while. I am grateful for it:)

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Amit Choudhary15y ago
Accepted answer
HI friend,
gvChecklist.DataKeys[e.Row.RowIndex].Values[1].ToString()
I have doubt on this statement. Did you set the Datakeys property of your grid in designer?? if you have already set it then make sure. .it should have two fields in comma separated form cause you have use value[1]. means here you are attempting to access the second indexed value from datakey collection.
if you are using only one field as datakey then use Value[0].

Thanks..
Becky Bloomwood15y ago
Sure, no prob. I have mark it as accepted answer:D
Amit Choudhary15y ago
Becky, Now i'm looking to you to mark my post as answer.. if you do believe in favor back.. :))
Becky Bloomwood15y ago
Thanks. It works like a charm:)I am grateful to u guys!Cheers!

Drop down list problem for editing req in grid view

Server Error in '/VRM_WebSite' Application.

Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index